نتایج جستجو برای: and decrease migration

تعداد نتایج: 16854052  

Journal: :journal of dentistry, tehran university of medical sciences 0
h. shahoon assistant professor, department of oral and maxillofacial surgery, school of dentistry, shahed unive m. esmaeili postgraduate student, department of oral medicine and diagnostic sciences, school of dentistry, shah

intraosseous migration is an unusual developmental dental anomaly, which demonstrates horizontal movement of unerupted teeth only affecting the permanent dentition of the lower jaw. mandibular second premolar is the most common impacted tooth after the third molars and maxillary canines. distal migration of the second premolar is rare and early loss of the permanent first molar is one of the mo...

Baharak Farhangi, Hamideh Monfared, Majid Sadeghizadeh, Maryam Montazeri, Mohammad Javad Dehghan Esmatabadi Roohollah Nakhaei Sistani

Objective(s): Despite the good results of anticancer activities by curcumin, there are some hurdles that limit the use of curcumin as an anticancer agent. Many methods were examined to overcome this defect like the use of the dendrosomal curcumin (DNC). There is increasing evidence that miRNAs play important roles in biological processes. In this study, we focus on the roles of microRNA-21 in t...

Journal: :فیزیک زمین و فضا 0
مریم خاکی فیروز کارشناس ارشد پردازش داده های لرزه ای، شرکت کدکم حمیدرضا سیاهکوهی دانشیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران

the stolt (f-k) migration algorithm is a direct (i.e. non-recursive) fourier-domain technique based on a change of variables (or equivalently, a mapping) that converts the input spectrum to the output spectrum. the algorithm is simple and efficient but limited to constant velocity. a v(z)(f-k) migration method, capable of very high accuracy for vertical variations of velocity, can be formulated...

Journal: :تحقیقات جغرافیایی 0
محمدعلی احمدی شاپورآبادی احمد تقدیسی

the present paper that was based on the documentation method and secondary analysis of data from censuses population and housing statistics center of iran, intended to thoroughly analyze the effects of these factors in rural migration on rural aging population in addition, the increase in aging of iranian employees in agriculture sector and its consequences were examined. results have shown tha...

Background & Objective: Herbal medicine and their composition are widely used for different therapeutic purposes. Therefore, this study was designed to evaluate of the anti-proliferation and anti-migration effects of Thymoquinone (TQ), an active part of Nigella sativa, on PC3 prostate cancer cells. Materials & Methods: In this experimental study, PC3 prostate cancer cells were treated with 0, 1...

Journal: :زن در توسعه و سیاست 0
حسین محمودیان دانشیار گروه جمعیت شناسی دانشکده علوم اجتماعی دانشگاه تهرا حجیه بی بی رازقی نصرآباد دانشجوی دکتری جمعیت شناسی دانشگاه تهران محمّدرضا کارگر شورکی کارشناس سیاست¬های بازار کار، وزارت کار و امور اجتماعی

one of the key issues of migration concerns women’s migration. this article, examines the conditions of skilled immigrant women in ehran. qualitative method is used to collect the necessary data for this tudy. the research also conducts in-depth interview with 25 immigrate women residing in tehran. the results of the research show that migration decisions depend on multiple factors including la...

This article examines the impact of governance quality on the migration of highly educated persons. Using human capital and social transition theories of migration, two hypotheses are proposed. The cross-sectional data (for 1990 and 2000) have been used to test the hypotheses via the framework of a random utility model. Principal Component Analysis (PCA) is used to build a composite index of go...

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